what is responsible for the file: ifcfg-essid?

[François Patte]

Bonjour,

I would like to know what is the process which automatically write the
file /etc/sysconfig/network-scripts/ifcfg-<name of a new essid> whenever
you connect your computer to a new wifi.

Generaly, the connection is made via dhcp and we have the instruction
PEERDNS=yes. I want to modify this ie. I want that the process write:

 PEERDNS=no

and add these lines:

DNS1=xxx.yyy.....
DNS2=zzz.ttt....

(fixed dns addresses).

I want that my laptop will be able to use these dns addresses in spite
of the assigned dns adresses by the dhcp which it connects to.

Thank you.

(Hope to be clear enough)
-- 
François Patte
UFR de mathématiques et informatique
Laboratoire CNRS MAP5, UMR 8145
Université Paris Descartes
45, rue des Saints Pères
F-75270 Paris Cedex 06
Tél. [phone]
http://www.math-info.univ-paris5.fr/~patte

[stan]

On Mon, 6 Feb 2017 19:50:10 +0100
François Patte <francois.patte(a)mi.parisdescartes.fr&gt; wrote:

>  Bonjour,
>  
>  I would like to know what is the process which automatically write the
>  file /etc/sysconfig/network-scripts/ifcfg-<name of a new essid>
>  whenever you connect your computer to a new wifi. 
NetworkManager
 
>  Generaly, the connection is made via dhcp and we have the
> instruction
>  PEERDNS=yes. I want to modify this ie. I want that the process write:
>  
>   PEERDNS=no
>  
>  and add these lines:
>  
>  DNS1=xxx.yyy.....
>  DNS2=zzz.ttt....
>  
>  (fixed dns addresses).
>  
>  I want that my laptop will be able to use these dns addresses in spite
>  of the assigned dns adresses by the dhcp which it connects to. 
In the file /etc/NetworkManager/NetworkManager.conf, in the [main]
section, put the line
dns=none
and then add the dns ip addresses you want to use to the file
/etc/resolv.conf
bare numbers, one per line.

For more info do
man NetworkManager.conf